首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The world’ s environment is surprisingly healthy. Discuss. If there were an examination topic, most students would tear it apart
The world’ s environment is surprisingly healthy. Discuss. If there were an examination topic, most students would tear it apart
admin
2016-06-25
63
问题
The world’ s environment is surprisingly healthy. Discuss. If there were an examination topic, most students would tear it apart, offering a long list of complaints from local smog(烟雾)to global climate change, from the felling(砍伐)of forests to the extinction of species. The list would largely be accurate, the concern legitimate. 【T1】
Yet the students who should be given the highest marks would actually be those who agreed with the statement.
The surprise is how good things are, not how bad.
After all, the world’ s population has more than tripled during this century, and world output has risen hugely, so you would expect the earth itself to have been affected. Indeed, if people lived, consumed and produced things in the same way as they did in 1900(or 1950, or indeed 1980), the world by now would be a pretty disgusting place, smelly, dirty, toxic and dangerous. But they don’ t. 【T2】
The reasons why they don’ t, and why the environment has not been ruined, have to do with prices, technological innovation, social change and government regulation in response to popular pressure.
That is why today’ s environmental problems in the poor countries ought, in principle, to be solvable. Raw materials have not run out, and show no sign of doing so. Logically, one day they must; the planet is a finite place. Yet it is also very big, and man is very ingenious. 【T3】
What has happened is that every time a material seems to be running short, the price has risen and, in response, people have looked for new sources of supply, tried to find ways to use less of the material, or looked for a new substitute.
For this reason prices for energy and for minerals have fallen in real terms during the century. The same is true for food. 【T4】
Prices fluctuate, in response to harvests, natural disasters and political instability; and when they rise, it takes some time before new sources of supply become available.
But they always do, assisted by new farming and crop technology. The long term trend has been downwards.
【T5】
It is where prices and markets do not operate properly that this benign(良性的)trend begins to stumble, and the genuine problems arise.
Markets cannot always keep the environment healthy. If no one owns the resource concerned, no one has an interest in conserving it or fostering it: fish is the best example of this.
【T3】
选项
答案
发生的情况是:每次当一种材料似乎要耗尽,价格就上升,与之相应,人们寻找新的供给能源,试图找到更少消耗这种材料的方法,或者寻找新的替代品。
解析
本句是由what引导的主语从句,表示“发生的情况是…”,substitute意指替代品。
转载请注明原文地址:https://kaotiyun.com/show/yPRd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Heroinaddictionstodayisfoundchieflyamongyoungmenofminoritygroupsinghetto(犹太人区)areas.Ofthemorethan60000know
Accordingtogovernmentstatistics,menofallsocialclassesinBritainvisitpubsquiteoften,【21】______thekindofpubthe
Thefamilyinthewesternworldhaschangedgreatlyduringthelasttwocenturies.Beforethenineteenthcentury,families
Mostcountriesintheworldnowwelcometouristsbecauseofthemoneytheybringin.Manycountriesmakegreateffortstoencour
Learningdisabilitiesareverycommon.They【21】______perhaps10percentofallchildren.Scientistsnowknowthereareman
"Intelligence"atbestisanassumptiveconstruct-themeaningofthewordhasneverbeenclear.Thereismoreagreementonthe
Inwhichsituationdoesthisconversationmostprobablytakeplace?
(61)Beautyhasalwaysbeenregardedassomethingpraiseworthy.Almosteveryonethinksattractivepeoplearehappierandhealthi
HotelswereamongtheearliestfacilitiesthatboundtheUnitedStatestogether.Theywere.bothcreaturesandcreatorsofcommu
ManyUnitedStatescompanieshave,unfortunately,madethesearchforlegalprotectionfromimportcompetitionintoamajorline
随机试题
TheSecretofaHappyMarriageThesecretofalongandhappymarriageappearstobenottoexpecttoomuchfromit.USrese
设二维连续型随机变量(X,Y)的分布函数为求(X,Y)的概率密度f(x,y).
患儿,10岁。前牙冷刺激痛数日。检查:右七中切牙近中深龋洞,叩诊无异常,不松动,冷测一过性痛。处理:去腐干净极近髓,敏感。治疗方法是
雄黄明矾
逍遥散、藿香正气散均源于我国历史上第一部中药制剂规范是
计划生育是我国的基本国策。()
已知某土d10=0.02mm,d30=0.25mm,d60=0.35mm,则该土的不均匀系数为()。
某工程建设联合有限公司与某大型设备公司签订了《设备融资租赁合同》,合同。中对租赁设备数量、质量、交付的时间、租金支付的方式等作了约定。该合同应当采用()。
下列票据中,不得背书转让的有( )。
纳税人因特殊情况不能按期缴纳税款的。经省、自治区、直辖市国家税务局、地方税务局批准,可以延期缴纳税款,但是最长不得超过()。
最新回复
(
0
)